初学者，网上搜了好久都没搜到怎么解决
[hadoop@centos7 hadoop]$ hadoop fs -put README.txt master:/input
put: No FileSystem for scheme "master"
[hadoop@centos7 hadoop]$ ls
bin etc include input lib libexec LICENSE.txt logs NOTICE.txt output README.txt sbin share tmp
[hadoop@centos7 hadoop]$ hadoop fs -ls /
Found 2 items
drwxr-xr-x - hadoop supergroup 0 2022-03-23 09:21 /input
drwxr-xr-x - hadoop supergroup 0 2022-03-23 08:56 /test
